Ambient conditions Application areas Remarks
Condensation, icing,
drip, spray and splash
water
Not permitted
Max. installation alti‐
tude
1000m above sea
level
Without thermal derating
2000 m above sea
level
With insulation
> 2000 m ... 4000 m
above sea level
Clearances for an operating voltage of 50 V at 5000 m
Air pressure 620 ... 1060hPa
Biological, chemical and mechanical inuences, pollutants
Biological environmental conditions Class 3B1 according to EN 60721‑3‑3:
Mold, mold growth, slime, rodents, termite and other
animal vermin are not permissible.
Mechanically active environmental conditions Class3S1 according to EN60721‑3‑3:
Conductive dust not permitted.
Classication of the mechanical
environment
3M1
Vibratory load Frequency range: 10 – 200 Hz
Deection at 10 – 58 Hz: 0.075 mm
Acceleration at 58 – 200 Hz: 1 g
Shock load with shock-sensitive components Acceleration: 5 g
Shock duration: 30ms
Load: 3 x in each direction
Pollution degree 2 (for indoor use only)
Type of enclosure Open type
Overvoltage category OVC 2
EMC conducted / radiation Class C2 according to EN61800-3
Note
The user must consider radio interference for the complete system. Particular attention should
be paid to cabling. Please contact your sales representative for assistance and support.
NOTICE
This device is designed for operation in the second environment (industrial areas) and must not
be used in the rst environment (residential areas) without appropriate interference suppress
measures.
Application planning
5.2Climatic and mechanical environmental conditions
NCU 1750
Equipment Manual, 10/2023, A5E45627807B AH 49